ASTROSAT CZTI

Data Quality Report

Orbit 41358

Creation date: 2024-06-27T22:28:05.830910
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_105T01_9000005658_41358cztM0_level2.fits modeM0/AS1T05_105T01_9000005658_41358cztM0_level2_quad_clean.evt
Size (bytes)350,962,56093,525,120
Size334.7 MB 89.2 MB
Events in quadrant A2,839,747646,562
Events in quadrant B3,021,776657,749
Events in quadrant C3,158,018601,080
Events in quadrant D3,560,956557,285

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115753
B0123992
C0124732
D0141842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A527690.170584%
B52761593.013647%
C52762504.738438%
D52762334.416224%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9252 5278 4 4 0.04% 0.08%
B 9252 5278 124 124 1.34% 2.35%
C 9252 5278 247 247 2.67% 4.68%
D 9252 5278 237 237 2.56% 4.49%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 502034 4086.91 600 589 122.7
A 12 189 15090 118.19 600 589 122.7
A 13 6 7047 52.63 600 589 122.7
B 5 255 590527 5218.71 593 577 113.0
B 0 155 53091 464.54 593 577 113.0
B 0 190 45987 401.7 593 577 113.0
C 0 10 719067 5442.25 566 570 132.0
C 15 214 219036 1654.77 566 570 132.0
C 15 111 7669 53.77 566 570 132.0
D 13 249 908453 6480.51 567 551 140.1
D 5 222 130153 925.09 567 551 140.1
D 1 52 115259 818.77 567 551 140.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter